package pojo;

//自定义对组，笔者算法常用cpp，不太熟悉java的pair，就自定义实现一下叭
public class Pair<K,V> {
    public K first;
    public V second;

    public Pair(K first, V second) {
        this.first = first;
        this.second = second;
    }
}


